constzhou commented on a change in pull request #35334:
URL: https://github.com/apache/spark/pull/35334#discussion_r799218296
##########
File path:
sql/catalyst/src/test/scala/org/apache/spark/sql/catalyst/optimizer/TransposeWindowSuite.scala
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@@ -142,4 +142,20 @@ class TransposeWindowSuite extends PlanTest {
comparePlans(optimized, analyzed)
}
+ test("transpose two adjacent windows with compatible partitions which is not
a prefix") {
Review comment:
This will fail before.
This PR has two effects for the rule: 1. extend the applicable cases(like
the case added in the UT) 2. perf improvement
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